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This script was designed to utilize the No-IP Update API which offers direct access to No-IP's DNS update system. Create a new script named no-ip_ddns_update The following permissions are required for this script to run: # No-IP automatic Dynamic DNS update #--------------- Change Values in this section to match your setup ------------------ # No-IP User account info :local noipuser "your_no-ip_user" :local noippass "your_no-ip_pass" # Set the hostname or label of network to be updated. Replace the value in the quotations below with your host names. :local url " IP" :local noiphostarray :set noiphostarray [:toarray $noiphost] :foreach host in=$noiphostarray do={ :log info "No-IP: Sending update for $host" /tool fetch url=($url . ".txt") :log info "No-IP: Host $host updated on No-IP with IP $current IP" } } else={ :log info "No-IP: Previous IP $previous IP is equal to current IP, no update needed" } } else={ :log info "No-IP: $inetinterface is not currently running, so therefore will not update." } --riverron , 18 March 2012 (UTC) Alternative script uses DNS Resolve and is based on an documentation Scripting-examples and documentation No-IP DNS Update API Can be modified for use with other Dynamic DNS services supported Re ST API.

centos dynamic dns not updating-35

Dclient is a Perl-based DDNS client used to update dynamic DNS records for domains.DDClient, most commonly used in Linux, Unix and Free BSD, has the same function with DNS-O-Matic in Windows platform.DDClient supports multiple DDNS services and it can fetch your constantly changing WAN public facing IP address in a few different ways.This tutorial guides you on how to install DDclient on a Cent OS machine.The procedure works also on Red Hat Enterprise Linux (RHEL), Scientific Linux and related distributions.

Prerequisites DDclient requires Perl and IO:: Socket:: SSL perl library for ssl-support.

Patch is required if you need Cloud Flare DDNS support, which is not currently built-into DDclient. r=http%3A%2F%2Fsourceforge.net%2Fprojects%2Fddclient%2Ffiles%2Flatest%2Fdownload&ts=1421763590&use_mirror=hivelocitycp ddclient /usr/sbin/ mkdir /etc/ddclient mkdir /var/cache/ddclient cp sample-etc_/etc/ddclient/cp sample-etc_rc.d_init.d_ddclient /etc/init.d/ddclient update-rc.d ddclient defaults Modify the /etc/ddclient/file to enter the dynamic DNS service provider and which “A” record of domain that you want to update once the IP address changed.

Several examples are included in the config file itself, or you can refer to the guide for supported protocols.

The IP address of the “A” record for the domain should be changed.

When everything is OK, runs DDclient using init script, which runs it as daemon with delay set in the configuration file, so additional cron job is not necessary.

Method 2: Using RPM Package DDclient has a RPM package for Cent OS, but it does not come with Cent OS base packages.